Παραπομπή σε μορφή APA (7η εκδ.)

Heller, M. (1992). Theoretical foundations of cosmology: Introduction to the global structure of space-time. World Scientific.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Heller, Michael. Theoretical Foundations of Cosmology: Introduction to the Global Structure of Space-time. Singapore ; River Edge, NJ.: World Scientific, 1992.

Παραπομπή σε μορφή MLA (9th εκδ.)

Heller, Michael. Theoretical Foundations of Cosmology: Introduction to the Global Structure of Space-time. World Scientific, 1992.